Finding the Fourth Proportional to 3,965,830.74, 5,472,881.10 and 2,154,994.74
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Solution
The fourth proportional to 3,965,830.74, 5,472,881.10 and 2,154,994.74 is: 2,973,911.59
Step by Step Solution
- Step 1: Write the proportion equation
3,965,830.74 : 5,472,881.10 = 2,154,994.74 : x - Step 2: Convert to fraction form
3,965,830.74/5,472,881.10 = 2,154,994.74/x - Step 3: Cross multiply
3,965,830.74x = 5,472,881.10 × 2,154,994.74 - Step 4: Simplify right side
3,965,830.74x = 11,794,029,983,145.41 - Step 5: Solve for x
x = 11,794,029,983,145.41/3,965,830.74 - Step 6: Final answer
x = 2,973,911.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.